MAL-2025-191833

    Dashboard / Malicious Package / MAL-2025-191833

    MAL-2025-191833

    Published: 1 Mar 2025Last Modified: 12 Dec 2025

    Summary: Malicious code in pydefender (PyPI)

    Details: Source: kam193 (a1e2cc2d94eff74e302118c35c34f87e76175fe507facbe21c29883960c8223e) setup.py is prepared to download and run an obfuscated batch script. While the script is not detected by any AV currently, in the sandbox analysis it reveals behaviour like adding exclusions to Windows Defender Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-02-pydefender Reasons (based on the campaign): - Downloads and executes a remote malicious script. - malware - The package overrides the install command in setup.py to execute malicious code during installation.

    References: https://www.virustotal.com/gui/file/0877653f6a24639bb02b547c94f670597c3c0cd96df910a2ac891eaeaa9cc5f3/behavior, https://tria.ge/250301-sdh1pstrz7/behavioral1, https://app.any.run/tasks/0fbdb4f9-0497-4272-baf0-872e8d6e50bc, https://bad-packages.kam193.eu/pypi/package/pydefender

    Affected packages

    Package

    Name: pydefender

    Purl: pkg:pypi/pydefender

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    0.0.1
    MAL-2025-191833 | CVE-DB